Local Anesthesia WREB Student RDH
Mock Exam - Ace Your Boards
Boost your confidence and master local anesthesia with this comprehensive
and meticulously crafted mock exam, designed specifically for WREB Student
RDH candidates This high-quality study material covers essential concepts,
dosages, techniques, and potential complications, mirroring the format and
difficulty of the actual WREB exam. Get ready to excel
Instructions: Choose the best answer for each multiple-choice question.
Questions:
1. What is the Maximum Recommended Dosage (MRD) of epinephrine for a
patient with hypertension? A. 0.04 mg B. 0.2 mg C. 0.4 mg D. 1 mg
Answer: A. 0.04 mg
2. What is the maximum recommended dosage (MRD) of levonordefrin for a
patient classified as ASA I? A. 0.04 mg B. 0.2 mg C. 1 mg D. 21 mg
Answer: C. 1 mg
3. A cartridge with 1:100,000 epinephrine has __ the amount of epinephrine
compared to a cartridge that contains 1:200,000 epinephrine? A. 1/4 B. 1/2
C. Double D. Quadruple Answer: C. Double
4. The patient has been diagnosed with hypertension stage 1 for the last 5 years
and is currently on hydrochlorothiazide (HCTZ) but the patient is not
following the prescription as recommended. In this case, the maximum
recommended dosage (MRD) for epinephrine is? A. 1 g B. 0.1 mg C. 0.2 mg
D. 0.04 mg Answer: D. 0.04 mg
5. What is the MRD of levonordefrin for a patient with hypertension? A. 0.04
mg B. 0.2 mg C. 1 mg D. 21 mg Answer: B. 0.2 mg
6. If the patient's weight is 130 lbs and the patient has been affected by
hypertension for the past 10 years, how many cartridges of 2% lidocaine
1:100,000 can be given to the patient in one appointment? A. 2.2 Carps B. 6
Carps C. 7 Carps D. 11.1 Carps Answer: A. 2.2 Carps
7. Lidocaine 1:100,000 has __ the amount of epinephrine compared to
lidocaine 1:50,000 A. 1/4 B. 1/2 C. Double D. Quadruple Answer: B. 1/2
8. How much epinephrine is there in one cartridge of 0.5% bupivacaine
1:200,000? A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: A.
0.009 mg
,9. How much epinephrine is there in one cartridge of 2% lidocaine 1:50,000?
A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: C. 0.036 mg
10.If the patient's weight is 150 lbs and no specific medical condition is present,
a maximum of how many carps of 2% lidocaine 1:100,000 can be given to
the patient? A. 9.17 carps B. 10.8 carps C. 10.7 carps D. 11.1 carps Answer:
D. 11.1 carps
11.The patient has been occasionally experiencing tightening of the chest for
the past 3 years, but such symptoms did not appear for at least 7 months. In
this case, the MRD for levonordefrin is? A. 1 g B. 0.2 mg C. 0.04 mg D. No
vasoconstrictor should be used Answer: B. 0.2 mg
12.The amount of epinephrine given with 2 cartridges of 2% lidocaine
1:100,000 is: A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: C.
0.036 mg
13.The patient reports allergy to dried fruits and red wine. Which drug should
be avoided? A. 2% lidocaine 1:100,000 B. 2% mepivacaine plain C. 4%
prilocaine plain D. All of the above Answer: A. 2% lidocaine 1:100,000
14.Which of the following conditions is NOT a contraindication for
epinephrine? A. Hypertension B. Hyperthyroidism C. Methemoglobinemia
D. Angina Answer: C. Methemoglobinemia
15.Which of the following is a possible side effect of vasoconstriction by
epinephrine? A. Angina B. Burning sensation upon injection C. Increased
blood pressure D. All of the above Answer: D. All of the above
16.What is the general shelf life of a local anesthetic cartridge with a
vasoconstrictor? A. 18 weeks B. 18 days C. 36 months D. 18 months
Answer: D. 18 months
17.Where is epinephrine produced in the body? A. Kidney B. Liver C. Adrenal
Glands D. Heart Answer: C. Adrenal Glands
18.What can be done to achieve hemostasis in preparation for periodontal
surgery? A. Use a LA that contains a vasoconstrictor B. Use a LA with a
higher drug concentration C. Clean the surgical area with gauze D. Use a
nerve block Answer: A. Use a LA that contains a vasoconstrictor
19.Which of the following drugs is best if the clinician wants to achieve
hemostasis? A. 2% lidocaine 1:50,000 B. 2% lidocaine 1:100,000 C. 3%
mepivacaine plain D. 4% prilocaine 1:200,000 Answer: A. 2% lidocaine
1:50,000
20.Sodium bisulfite is added in dental cartridges to: A. Create vasoconstriction
effect B. Make the solution isotonic with the tissues C. Prevent oxidation of
the vasoconstrictor D. Dilute the anesthetic Answer: C. Prevent oxidation
of the vasoconstrictor
, 21.If the patient's weight is 130 lbs and the patient has been affected by
hypertension for the past 10 years, how many carps of 2% lidocaine
1:100,000 can be given to the patient in one appointment? A. 2.2 carps B. 6
carps C. 7 carps D. 11.1 carps Answer: A. 2.2 carps
22.How much epinephrine is there in one cartridge of 2% lidocaine 1:100,000?
A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: B. 0.018 mg
23.What is the MRD of epinephrine for healthy adult patients? A. 400 mg B. 1
mg C. 0.2 mg D. 0.04 mg Answer: C. 0.2 mg
24.A vasoconstrictor can do all of the following, except? A. Increase the
duration of anesthesia B. Decrease the bleeding at the site C. Increase the
absorption rate of the LA into the vascular system D. Decrease the
likelihood of adverse reactions Answer: C. Increase the absorption rate of
the LA into the vascular system
25.If the patient is affected by cirrhosis: A. the LA drug would be absorbed at a
faster rate into the CVS B. the LA drug would be metabolized at a slower
rate C. the LA drug would be excreted at a faster rate D. the LA drug would
not be properly absorbed. Answer: B. the LA drug would be metabolized
at a slower rate
26.Injectable local anesthetics are delivered: A. Intravenously B.
Subcutaneously C. Intramuscularly D. Intrathecally Answer: B.
Subcutaneously
27.Which of the following is true about the effect of LA on the central nervous
system? A. LAs do not cross the blood-brain barrier B. Tonic-clonic
convulsions always occur with OD C. Toxicity is usually not observable
within the first 10 mins from injection D. Overdose is expressed as CNS
excitation followed by depression. Answer: D. Overdose is expressed as
CNS excitation followed by depression.
28.Patients who respond to local anesthetics faster & more rapidly than
expected are called: A. No responders B. Normo-responders C. Hyper-
responders D. Hypo-responders Answer: C. Hyper-responders
29.Epinephrine should NOT be used on patients who: A. Experience angina on
a daily basis B. Had an MI episode 7 months ago C. Have a pacemaker D.
All of the above Answer: A. Experience angina on a daily basis
30.Which of the following is related to early signs of LA toxicity? A. CNS
excitation B. CNS depression C. Cardiac arrest D. Respiratory arrest
Answer: A. CNS excitation
31.Which of the following conditions can affect the speed of drug
biotransformation? A. Cirrhosis B. Hypotension C. Congestive heart failure
D. All of the above Answer: D. All of the above
Mock Exam - Ace Your Boards
Boost your confidence and master local anesthesia with this comprehensive
and meticulously crafted mock exam, designed specifically for WREB Student
RDH candidates This high-quality study material covers essential concepts,
dosages, techniques, and potential complications, mirroring the format and
difficulty of the actual WREB exam. Get ready to excel
Instructions: Choose the best answer for each multiple-choice question.
Questions:
1. What is the Maximum Recommended Dosage (MRD) of epinephrine for a
patient with hypertension? A. 0.04 mg B. 0.2 mg C. 0.4 mg D. 1 mg
Answer: A. 0.04 mg
2. What is the maximum recommended dosage (MRD) of levonordefrin for a
patient classified as ASA I? A. 0.04 mg B. 0.2 mg C. 1 mg D. 21 mg
Answer: C. 1 mg
3. A cartridge with 1:100,000 epinephrine has __ the amount of epinephrine
compared to a cartridge that contains 1:200,000 epinephrine? A. 1/4 B. 1/2
C. Double D. Quadruple Answer: C. Double
4. The patient has been diagnosed with hypertension stage 1 for the last 5 years
and is currently on hydrochlorothiazide (HCTZ) but the patient is not
following the prescription as recommended. In this case, the maximum
recommended dosage (MRD) for epinephrine is? A. 1 g B. 0.1 mg C. 0.2 mg
D. 0.04 mg Answer: D. 0.04 mg
5. What is the MRD of levonordefrin for a patient with hypertension? A. 0.04
mg B. 0.2 mg C. 1 mg D. 21 mg Answer: B. 0.2 mg
6. If the patient's weight is 130 lbs and the patient has been affected by
hypertension for the past 10 years, how many cartridges of 2% lidocaine
1:100,000 can be given to the patient in one appointment? A. 2.2 Carps B. 6
Carps C. 7 Carps D. 11.1 Carps Answer: A. 2.2 Carps
7. Lidocaine 1:100,000 has __ the amount of epinephrine compared to
lidocaine 1:50,000 A. 1/4 B. 1/2 C. Double D. Quadruple Answer: B. 1/2
8. How much epinephrine is there in one cartridge of 0.5% bupivacaine
1:200,000? A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: A.
0.009 mg
,9. How much epinephrine is there in one cartridge of 2% lidocaine 1:50,000?
A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: C. 0.036 mg
10.If the patient's weight is 150 lbs and no specific medical condition is present,
a maximum of how many carps of 2% lidocaine 1:100,000 can be given to
the patient? A. 9.17 carps B. 10.8 carps C. 10.7 carps D. 11.1 carps Answer:
D. 11.1 carps
11.The patient has been occasionally experiencing tightening of the chest for
the past 3 years, but such symptoms did not appear for at least 7 months. In
this case, the MRD for levonordefrin is? A. 1 g B. 0.2 mg C. 0.04 mg D. No
vasoconstrictor should be used Answer: B. 0.2 mg
12.The amount of epinephrine given with 2 cartridges of 2% lidocaine
1:100,000 is: A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: C.
0.036 mg
13.The patient reports allergy to dried fruits and red wine. Which drug should
be avoided? A. 2% lidocaine 1:100,000 B. 2% mepivacaine plain C. 4%
prilocaine plain D. All of the above Answer: A. 2% lidocaine 1:100,000
14.Which of the following conditions is NOT a contraindication for
epinephrine? A. Hypertension B. Hyperthyroidism C. Methemoglobinemia
D. Angina Answer: C. Methemoglobinemia
15.Which of the following is a possible side effect of vasoconstriction by
epinephrine? A. Angina B. Burning sensation upon injection C. Increased
blood pressure D. All of the above Answer: D. All of the above
16.What is the general shelf life of a local anesthetic cartridge with a
vasoconstrictor? A. 18 weeks B. 18 days C. 36 months D. 18 months
Answer: D. 18 months
17.Where is epinephrine produced in the body? A. Kidney B. Liver C. Adrenal
Glands D. Heart Answer: C. Adrenal Glands
18.What can be done to achieve hemostasis in preparation for periodontal
surgery? A. Use a LA that contains a vasoconstrictor B. Use a LA with a
higher drug concentration C. Clean the surgical area with gauze D. Use a
nerve block Answer: A. Use a LA that contains a vasoconstrictor
19.Which of the following drugs is best if the clinician wants to achieve
hemostasis? A. 2% lidocaine 1:50,000 B. 2% lidocaine 1:100,000 C. 3%
mepivacaine plain D. 4% prilocaine 1:200,000 Answer: A. 2% lidocaine
1:50,000
20.Sodium bisulfite is added in dental cartridges to: A. Create vasoconstriction
effect B. Make the solution isotonic with the tissues C. Prevent oxidation of
the vasoconstrictor D. Dilute the anesthetic Answer: C. Prevent oxidation
of the vasoconstrictor
, 21.If the patient's weight is 130 lbs and the patient has been affected by
hypertension for the past 10 years, how many carps of 2% lidocaine
1:100,000 can be given to the patient in one appointment? A. 2.2 carps B. 6
carps C. 7 carps D. 11.1 carps Answer: A. 2.2 carps
22.How much epinephrine is there in one cartridge of 2% lidocaine 1:100,000?
A. 0.009 mg B. 0.018 mg C. 0.036 mg D. 0.2 mg Answer: B. 0.018 mg
23.What is the MRD of epinephrine for healthy adult patients? A. 400 mg B. 1
mg C. 0.2 mg D. 0.04 mg Answer: C. 0.2 mg
24.A vasoconstrictor can do all of the following, except? A. Increase the
duration of anesthesia B. Decrease the bleeding at the site C. Increase the
absorption rate of the LA into the vascular system D. Decrease the
likelihood of adverse reactions Answer: C. Increase the absorption rate of
the LA into the vascular system
25.If the patient is affected by cirrhosis: A. the LA drug would be absorbed at a
faster rate into the CVS B. the LA drug would be metabolized at a slower
rate C. the LA drug would be excreted at a faster rate D. the LA drug would
not be properly absorbed. Answer: B. the LA drug would be metabolized
at a slower rate
26.Injectable local anesthetics are delivered: A. Intravenously B.
Subcutaneously C. Intramuscularly D. Intrathecally Answer: B.
Subcutaneously
27.Which of the following is true about the effect of LA on the central nervous
system? A. LAs do not cross the blood-brain barrier B. Tonic-clonic
convulsions always occur with OD C. Toxicity is usually not observable
within the first 10 mins from injection D. Overdose is expressed as CNS
excitation followed by depression. Answer: D. Overdose is expressed as
CNS excitation followed by depression.
28.Patients who respond to local anesthetics faster & more rapidly than
expected are called: A. No responders B. Normo-responders C. Hyper-
responders D. Hypo-responders Answer: C. Hyper-responders
29.Epinephrine should NOT be used on patients who: A. Experience angina on
a daily basis B. Had an MI episode 7 months ago C. Have a pacemaker D.
All of the above Answer: A. Experience angina on a daily basis
30.Which of the following is related to early signs of LA toxicity? A. CNS
excitation B. CNS depression C. Cardiac arrest D. Respiratory arrest
Answer: A. CNS excitation
31.Which of the following conditions can affect the speed of drug
biotransformation? A. Cirrhosis B. Hypotension C. Congestive heart failure
D. All of the above Answer: D. All of the above
